“You get your choice of bore size with these blocks — most people go with 4.125 to 4.170. The bore size selected depends on the application: most nitrous applications like to go with the larger bore, while the boosted applications tend to favor the smaller bore sizes. We also offer a variety of camshaft size options, from 55mm Babbitt to 60mm roller cam. The blocks can use both standard and custom bushed lifters that are tie-bar or keyway based,” Mens says.
The blocks are made using the GM LSX-style head bolt pattern and have a set of 1/2-inch studs already installed. You can use any kind of LS-based head you want on the Energy block, depending on what your horsepower goals are. Energy even offers its own canted valve cylinder head that works well for any power-adder application.
If you’re still wondering why billet is better or if this style of engine block is for you, Mens offers some final words.
“You’re going to have added strength at a light weight with a billet block like this. You’ll have serviceability with a billet block that you don’t have with other blocks. Most racers are pushing these engines to their limits, so if you do hurt the block it can be repaired. We also carry the service parts like sleeves, studs, and main caps, so you can make a quick phone call to us to get what you need.”
To learn more about these billet beauties check out the Callies website
right here.
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Callies
(419) 435-2711